A voluntary association of



2 Shuts-Shoot 1 Charles shwrd.

67%WYNEK C. SHEARD TRIAL FRAME Original Filed July 5, 1922 May '4 v, 1926.

my 4,1926. Re. 16,345"

' C. SHEARD TRIAL FRAME Original Filed July 3 1922 2 Sheets-Shoot 2 Invenior.

3n Charle Sheard. v W W- v Reissued May 4, 1926.

at. uman,

Toallwkom it'm concern:

it known t t I, Gmms Sums, a citizen of United- States, residing at Rochester, in the of Oimsted 'and a State of Minnesota,-hsve invented new and useful, Improvements in Trial Frames, of

, whieli the following is it specification.

This invention relatebto improvements in trial frames, which is to say, adjustable lens 10 holdingirames or members for use in supporting lenses to test the vision of a patient.

'flne'oithe 1 am s objects of the present is t e provision of a new or novel construction of trial frem'e which shall elim- 1 into: the use of gears, screws, and other adinviting devices as ordinarily employed in them to the face of a patient.

A further object; of the invention is the creasmg the oomfirrt ofthe patient, both on Q account of the lightness of frame made pos I. .siblo by the present improvements,-snd also 7 the speed and ease with. which the adjustments msyfbe made without undue pulling oa -twisting of the heme on the face.

A; further object oi the invention is the provision otf'jnew and novel means for secur 1 the parts in desimdadjusted relation.'

er'ebjects and advantages of the present invention should be readily apparent by 8 reference tothe following specification taken v in connection with the accompanying drawings, and it will be understood that I may make any modifications in the specific de tails of construction shown and described within the scope of the appended claims departing from or exceeding the spiritofthe invention.

Figure 1 represents a frame embodying-my improvements.

Figure :11 represents a side elevation thereof. V

Figure III represents a sectional view as on the line LIL-J11: of Figure I, the bridge bur proper'being shown in elevation. 'lfiigture IV represents a horizontal sectionalview as online XX -IV of Figure I.

meanness: 13, !!28, will n "new, n e. July a, 1m. remue'mec much 28, ma serial no. 98,82.

shifting theseveral parts of the frame to fit" provision of an improved simplified frame front view of a UNITED sures PATENT orrice.

- was or meson, ASSIGNOB T0 mnnicmv OPTICAL 0; soul 10:1: 2, nmcnu'sn'r'r's', A votUfi'r'ARY ASSOCIATION or must. mm.

Application for eml parts forming the endpieoe construction 1n position 'for assembly.

Figure VI II represents a sectional view of a modified form of locking device. v

Figure IX represents a. similar view illustrating another form thereof. Q

In the drawings, in which similar chaise, ters of reference are employedto denote corresponding parts throughout the several viswsflhe numeral 1 designates the main or central bar member, preferably substantially triangular in cross section, as is indicated in Figures III and V, and being provided with the gradnations 2 forming scales for determination of relative adjustment of certain of the remaining parts. This bar 1 has centrally secured thereon the block 3 substantially cylindrical in form, and having at one side a cut away portion or recess 4 and adjacent thereto the toothed or rack portion V represents adetailed section I against the pressure of the spring 12 and bring the end of the pawl into the end of the recess; When in this spositionthe nose rest guide or carrier 7 and eeve 6 may be easily, and freely rotated upon the block 3, while upon release of the button 11 thespring 12 will reverselv rock the lever causing" the swllO to interlock between certain of the teeth 5 as is indicated in Figure V, securely locking the device against any'accidentelrm tative movement ass-respects the bar 1.

The member 1, it will be noted, is formed with the guideapertures 13 through which slide-the nose rest bar 14 provided with the crest engaging portion 15 at the lower end and with the handle or actuating'portions 16 and 17, respectively. To look the mom? ber 14 against accidental sliding position and hold it in desired adjustment, I preferably make use of the locking plate 18 pivoted to the member 7, as at 19, and having on one end the actuating piece or button 20, and formed near the other end with the alperture 21 through which the member 14 s ides. The member 19 is so disposed that when the aperture 21 which is somewhat larger than the apertures 13, is in alinement with said apertures the (plate 18 is swung at a downward angle an against the pressure of the spring 22 which tends to swing the plate upward; this upward movement on account of the position of the point of pivotance causes the inner edge of the plate, as

at 23, to bind against the member 14, any

upward movement tending to increase this binding action so that the member 14 is securely locked in depressed position. To lower the member it is merely necessary to make use, for example,'of the bottom of the casing 7 as a rest for the thumb, and press with the forefinger on the button 16, when the member 14 will readily slip downward. To move the parts into reverse position it is merely necessary to grasp the button 20 and handle or projection 17 between the thumb and forefinger and slide the bar 14 upward the desired amount, this pressure releasing the look so that the bar will slide freely,

' while being automatically secured at the debe readily sired adjustment when the grip or pressure on the button 20 is released.

It will thus be seen that the exact position of the crest rest 15 as respects the bar 1 may adjusted as desired in an extremely simple and efficient manner, the positioning of the bar 1 as respects the face, therefore, bein dependent on the engagementbet-ween t e crest member 15 and thenose of the patient.

Slidably mounted upon the bar 1 are the.

sleeves 24 having secured thereto the rearwardly and downwardly extending arms 25 adapted to sup ort the lens cells and the temples 26 whic serve to retain the frame in position on the face. The sleeves are each provided with a suitable friction device for olding them in desired ad usted position along the bar 1, while similar sleeve members 64 are slidably engaged on the arms 25 and rovided with like friction devices for holding the individual cells in adjusted position along the arms. As these structures maybe identical in form it is thought a de- "scription of the friction device in connection with the member 24 will be suflicient, it being-understood that a similar friction device of any desired type is employed in connection with each of the sleeve or guide members 64.

' as provi In Fiare IV, I have illustrated the sleeve d with a cut away or recessed portion, as at 7 5, in which is fitted the friction of the members 30 with the t finger and with the other of said members press against the rest 31 on the end of the bar 1, to slide the sleeve 24 and associated parts outwardly, while similar inward movement can be imparted .by similar grasping with the hand of the member 7 and the opposite car, this vserving to press or slidethe parts inward without twisting or pulling the frame appreciably on the face of the patient.

An alternative form of friction device is illustrated in connection with Figure VIII, in which the sleeve 32 corresponding to the sleeve 24 is made use of, but is rovided with the bevel or undercut sur aces 33 against which ride the corresponding surfaces of the cam blocks 34 which are actuated by the intermediately disposed spring against the pressure of the spring and out of engagement with the inclined surfaces 33 of the member 32 as by the projecting handle portions 36, so that pressure against the two handleportions 36 will release the friction and allow the slide to be adjusted as desired.

A further modification is illustrated in connection with Figure IX, in which a corresponding sleeve member 37 ismade use of sliding on the bar 1 and containing therewithin the tilting lock members 38 apertured as at 39 to receive'the bar 1 and preferably secured to the casing for pivotal or rocking movement therewithin. In this case also an interposed spring 40 is employed which throws the plates apart as respects their lower or handle bearing portion so that as the two actuating handles or buttons 41 are' pressed together they will swing the plates against the action of the spring 40 to release the member 1 so that the sleeve 37 may be readily slipped therealong, being automaticaly locked in place as the members 41 are released.

I would call particular attention to the fact that in connection with the present improved frame in place of the lens cell arms depending from the cross bar 1, as has hitherto been the custom, these arms are rearwardly and laterally curved and are primarily designed to be dispomd at the sides of the face rather than entirely in front of the face, as has been the case with i Wi h the hinge cars 49 of the retai 1%:26 tgievotully secured to the portion 48 constructions and to couse tire lens mg pin or groove portions as in mate at 42, to-lie much closer to thd face and in a position tending to best balance the frame 5 on the with a slighttendency to swing inward atthe bar rather than outward, thus causing-Rheumatic to cling-and fit better to the "face, asgtellhaslto allobwfbettegnccurate u.-."-1; e enses oreteeye at I tel-named distances irrespective of the slimpoof the face or features of thepatielit. lens cells are carried by arms or bloc-ks 43 which are in turn secured to the guide sleeve 42 and are provided with the 'r'earwwtd extensions 44 perforated as at 4-5 v to receive the pivot screw or bolt 46'which also passesthrough the pivot apertures in 'the'esrs 47 oftthe temple attachment 4s whiclr thus forms a. vhinge eye to interlock tem- screw 50.- A spring washer 51 and ut fiflserve to engage and secure the 'bOIQ lQ the bolt having the head i on somewhat flattened off, as is in- I 1 s ieated $53, SGthatfllB projecting terminus 54 of the temple may interlock therewith.

'l'hejbelu head isiurther provided with the ding pointer portion adapted to oooperatewith'the protractor scale '55 on the ear or plate portion 44 to indicate the a'ngleto which the temple has been adjusted, as is-most clearly shown in'connection with Figure II- of the drawings.

The )resent frame is designed for two '0 testing, this being one of the partr'cullr reesons'for having the an ular and-- awe of the temple just re red to.

A r That is to-sey, the structure may be eitber is is indicated in Figure I of the with the bar 1 substantially horizofital on the face and the difference if any I in. height of the two eyes compensated for lrfvertiical sliding of the respectivesleeves theirsupporting arms 25, which is acby grasping of the projecting cars 56 or car 571ml button or head 58ersspectively, or the templesinay be difierently' tilted so asflto throw the frame itself in 'enlfinhrrelation to the face but center each cc before the eye of the patient. This is indicatedin Figure VI, in which the line fi sho'ws the normal horizontal axis and th lincflfil) the-axis to which the frame is tilted.

to: be in line with the pupil of t e e at each side, this indicating that the um is then inv proper relation to the face forthetestin purpose; I

-It will'tiius e seen that the present frame washer in connection with the bolt 46 and nut 52 and the interlocking of the temple with the bolt serves to frictionally hold the temple in dcsired'position and thus regulate or control-the tilt of the frame itself.

From the foregoing specification taken in connection with the accompanying drowings, the construction and urpose of my improved trial frame shouid be readily apparent, and it will be seen that I have provided an extremely satisfactory. and desirable construction in which all adjustments may be accomplished by the use only of the thumb and forefinger and with a direct sliding action as opposed to a. screw feed notion, and in which means are provided in every instance so that this sliding action-in either direction maybe accomplished without uscessity of 'steadying or pushing the frame with more than one hand of the examiner,

and may be accomplished without necessity of removing the frame from the face or disturbing the frame to an amount appreciable or objectionable to the, patient.

I would further call attention in connection with Figure I to the fact that the arouate members 42 at each side are provided with upstanding lug portions 66 for the supplace of the employment of the transparent discs 61, a ruler or like gauge or wire may be placed to rest on the pins 66 when the same will extend along the zero-180 degree line of each eye or lens cell of the trams. This line or gauging member may be exactly lined up with the center of the pupils of each of the eyes, the frame being angled and adjusted to accomplish these results as with the discs of Figure VI.

I-- claim:

1. In a device of the character described, the combination with a central bor'and a vertically and angularly adjustable nose rest support associated therewith comprising a block, a sleeve rotatably arranged around the block, means carried by the sleeve to prevent rotation thereof upon the block, and friction means for securing the nose rest support in desired vertically adjusted position and a positive release for the friction lock to disengage the same when it is desired to raise the nose rest so port.

2. A trial frame inc uding a supporting bar, a sleeve adjustable along the bar, a frict-ion device for securing the slceve'in desired adjusted, position, and handle projections on the sleeve and bar for cooperative employment in relative shifting of theparts against the action of the friction.

3. In a device of the character described, the combination with a central bar, of a vertically and angularly ad'ustable nose rest support associated therewit friction means for securing the nose rest support in desired vertically adjusted position, the friction device and nose rest support having pro'ecting portions adapted to be cooperative yiengaged to facilitate imparting relative slidin movement to the parts.

4. In a device of the character described, the combination with a support, of a casing rotatable thereon, a nose rest bar carried by the casing, a laterallyreleasable rack mechanism for locking the casing against angular adjustment relative to the support, and a vertical releasable friction mechanism for locking the nose rest support against upward movement.

,5. In a device of the character described, the combination with a support and a bar slidable relative to the support, of a movable friction device automatically disengag-v ing on the movement of the bar in one direction and automatically locking to prevent movement of the bar in the opposite direction.

6. In a device of the character described,

the combination with a supporting bar, of'

rearwardly and downwardly curving carrier arms associated therewith, forwardly extending lens cell portions on the supporting arms, rearwardly extending brackets on the arms, and angularly adjustable temple v members carried by thebrackets.

7. A device of the character described,

com risi a central bar a air of slides on the ar, arms depending from the slides, lens holder members having portions slidably engaged on the arms and independent friction devices carried by each of the slides for locking its respective member in desired adjusted position.

8. In a. device of the character described, the combination with asupport and a bar slidable relative to the support, of a mov-.

able friction device automatically disengaging the movement of the bar in one direction and automatically looking to prevent movement of the bar in the opposite direction,

and means to tilt the bar and to lock the same in the desired adjustment,

9. In a device of the character described,

comprising the combination of a central bar,

of a block rigidly mounted thereon, a sleeve arranged around the block, a nose rest guide carried by the sleeve, a nose engaging mem-' ber slida-ble through the guide, means to prevent movement thereof' through the guide in one direction, and means to' lock the sleeve against rotation. V

10. A device of the character described,v comprising a central bar, a pair of slides on the bar, friction means carried by the slides to engage the bar to prevent accldental displacement, arms depending from the slides, lens holder means having members slidably engaged on the arms and inde endent friction devices carried by the lens older means to prevent accidental displacement thereof on the depending arms. I

11. A device of the character described,

comprising a central bar, an adjustable nose engaging member carried thereby, friction members arranged on both sides of the nose engaging member, ears carried by the friction members to facilitate movement thereof along the bar, depending arms carried by the friction members, lens cells carriedby the depending arms and friction means associated with the lens cells to maintain the lens cells in desired adjustment on the depending arms. I I

12-. A device of the character described,

comprising a central bar, a nose enga ing member adjustably mounted thereon, riction means slidable on the bar,ears carried" thereby to facilitate operation of the friction sleeve adjustable along the bar, frictional" means carried by the sleeve adapted to contact with the bar to prevent displacement thereof, and ears carried by the said sleeve to facilitate the movement thereof along the bar when desired.

14. In a device of the character described,-

the combination with. a central bar, of a block arranged on the bar, a sleeve rotatably mounted on the block, a nose engaging guide member formed integral with the sleeve, a

nose engaging member in the guide member.

a plate pivotally mounted within the guide member and having an opening adapted to receive the nose engaging member, an operating button having contact with one end of the plate adapted to force the said plate into an inoperative position and spring means contacting with the plate for normally urging the same into an operative position whereby to prevent movement of the nose engaging member in one direction.

15. In a device of the character described,

the combination with a central bar of a. block having gear teeth formed thereon, arranged on said central bar, of a housing around said block, a nose engaging member in the housing, a pivoted lever adapted for engagement with said gear teeth normally reventing displacement of the housing and t e nose engaging member. v

16. In a device of the character described, the combination with a central bar, of a block havin gear teeth formed thereon, a sleeve rotatailily arranged around the block, a nose .engagingguide member formed intemlly with the sleeve, a nose engaging memslidable through the guide member, a pivoted pawl adapted for engagement with the gear teeth to prevent rotation of the sleeve around the block and a. pivoted plate adapted for engagement with the nose engaging member to normally hold the same against movement in one direction and means to move the said plate into an inoperative position.

17. In a device of the character described, the combination with a central bar, of a vertically and angularly adjustable nose rest support associated therewith, friction means for securing the nose rest support in desired vertical adjusted position, a positive release for the friction lock to disengage the same when it is desired to raise the nose rest support, a pair of slides on the bar, friction means associated therewith to prevent accidental displacement, rearwardly curved depending arms carried by the slides, lens holder members having portions slidably engaged on the arms, independent friction devices carried by each of the slides for locking its respective member in desired adjusted position, and adjustable temples carried by the said slides.

' 18; In a device of the character described, a cross bar, a slide thereon having an arm secured thereto extending rearwardly and downwardly from the cross bar, a slide on the downwardly projecting portion, an arm a cross bar having a finger rest thereon, a]

friction slide on the cross bar having a finger rest at each end, a support attached to the friction slide and extending to the rear and downwardly therefrom, a finger stop on the lower end of the depending arm, a second finger stop on the depending arm intermediate of its ends, a friction slideon the depending arm between the finger stops, finger stops on either end of the said second slide, an

arm attached to the said second slide and a lens cell carried by the arm.

20. In a device of the character described, a cross bar, a block rotatably mounted on the cross bar, astop to lock the block in anydesired position on the cross bar, a post slidable through the block and a lock stop adapted to lock the slidable post against upward movement through the block and a nose rest on the lower end of the post.

21. In a device of the character described, a cross bar, a slide on the cross bar, a bar secured on the slide extending rearwardly and downwardly therefrom, a slide on the downwardly extending portion of the support having arms secured thereto, lens cells carried by the arms, means for moving the slide along the cross bar, and means for moving the slide along the depending support.

22. In a device of the character described, a side bar having a fixed finger rest thereon, a slide on the slide bar and a finger rest on the slide whereby the slide may be moved along the slide bar by placing one finger on the slide rest on the bar and another finger on the slide rest on the slide.

CHARLES SHEARD. 

